Gravity air circulator



Patented Nov. 2, 19232. M4569@ JOHN ERREUR-AM LACY, OE CHICAGO, LLINOIS.

GRAVITY ein oincnnnfronf Application filed April 1922. Serial No.549,096.

To ZZ w/wmc'tmag concer/n.: from the ceiling 2 of the cooling room 3 Beit known that l, donn Baarnse; Laer, and the side wall 4. The rack 1consists ot a subject ot' thelinp of England, and a resia plurality ci`vertical supports 4 ot angle dent of Chicago, in the county of` Cookand iron which are fastened directly to the ceil- 60 State of illinois,have invented a new and ing' 2, as shown at 5, and a plurality ofveruseiul improvement in Gravity .r'frir Cirtical angle ironsupportingmembers 6, culators, ot which the following; is a full, whichare secured directly opposite the snpclear, and exact description. ports4. and horizontal cross pieces 8 of My invention relates to improvementsin angle iron are riveted as shown at 9, at 65 l0 gravity aircireulators for refrigerators, and each end to the supports 4 and 6,respecit consists in the combinations, constrnctively. The horizontalsupporting` members tions` and arrangements herein described S arerelatively close together so that cooland claimed. ing pipes 10, throughwhich a brine or .in object oi' my invention is to provide chemicalcooling agent l'lows, are appr0Xi- 70 a gravity air circulator ot thecharacter de mately disposed at a distance ot tour inches scribed whichlis more simple in construction from center to center. Reference to Figthan shown in my previous air circulating nre 2 will show that therelative positions systems and in which the air is better cirot' thepipes 10 extend from wall to wall in culated than in the previonsconstructions. the room 3 and are in parallel relation to 75 2o Atilrther object ot my invention is to the wall 4.

provide a construction of the character de- A metal sink 11 is disposedat a slight scribed in which the air is cooled and deinclination fromthe supports 6 to the suplivered at a point adjacent the ceiling oi? theports 4 and runs the entire length of the room. thus permitting` thecooled moving air pipes 10. The sink 11 terminates at its S0 to ialldirectly upon the contents of the lower end 12 in a gutter (see Figure1). room. The upper and opposite end of the sink 11 A further object otmy invention is to is in a vertical plane and extends in subprovide aconstruction of the character destantially parallel relation to the wall4 bescribed in which a dead air space is disposed hind the tier ot pipes10. A battle ot' insu- 85 between the current of warm air enteringlating` material is disposed immediately bethe cooling space and thecurrent of cool air neatli the pipes 10 and at a slight angle fromdelivered therefrom. the horizontal plane. This battle 18 is of A.further object ot my invention is to wood, suitably covered by a metalcasing, provide a construction of the character deand it is mounted sothat inclines upward 90 scribed by means of which a relatively small asit approaches the supporting members 4 current of warmer air is admittedto the from which it is supported by means of cooling space and which isdistributed over bolts 14. a relatively large cooling' area anddelivered Unlike the sink 11, however, the insulatthrough a relativelylarge opening;` when ing` balile 13 extends the entire width of the 954.o fairly cooled. The action of the relatively room, wh'ile the sink 11merely extends thin current of warmer air strikingT the coolbeneath thepipes 10. A dead air space 15 inny coils is such that only a minimumdeis provided by means ot a hollow sheet posit of frost is lett upon thecooling pipes. metal casingT 15, closed at each end and Other objectsand advantages will apa cross section through which resembles an 100pear in the following specification, and the isosceles triangle. rihiscasing 15, providnovel features ot' the invention will be par-l ing: thedead air space, is entirely closed, ticularly pointed out in theappended claims. and is supported upon the supporting mem- My inventionis illustrated in the accom-` bers 4by means of brackets 16 and 17 sopanying` drawings, forming part of this ap that one ot its sides 19 liesin a plane paral- 105 5o plication, in which lel to the wall 4. Theuppermost side of Figure 1 is a sectional view of an embodithe casing`15 `entends laterally beyond the ment of my invention, and i adjacentside 19 toward the wall 4 substan Figure 2 is a top plan view ot themecha tially as shown at 18. nism shown in Figure 1. The space betweenthe sink r11 and the 110 In carrying; out my invention, Irnake usebattle 13 is lilled with: an insulating material of a supporting' rackji. 'which is suspended as' shown at 133.l

From the foregoing description ot the various parts oli the device, theoperation thereof may be readily understood. Let us assume that acooling agent` flowing through the pipes 10 and that air is 'free tocirculate in the room The warm air in the room will rise to the ceiling`2 and that air which is adjacent to the dead air space 15 will graduallyflow over the extension 18 between the dead air space 15 and the ceiling2, which is a relatively narrow opening, into the space 16"L occupied bythe cooling pipes 10.

The air thus flowing into the space 16A will be admitted in a relativelythin stream and when once in the space 16a., will be distributed. l/Vhenthe air comes into Contact with the pipes 10, it will be cooled quicklybecause the heated air has been distributed over a larger area and whencooled the air will pass out through the space between the outer end otthe battle 13 and. the bottom of the dead air space 15.

As the cool air leaves the cooling` space 16EL in the manner described,it will be permitted to tall upon the contents et the room and will not,as in the constructions in use present, be delivered at a point adjacentthe bottom of the room. The cooled air, because it is distributed at apoint adjacent to the top of the room, will not be apt to absorb muchheat betere it reaches the objects which are to be cooled.

It will also be noted that this stream ot cooled air is directed towardthe center ot the room and not toward the walls where it is less needed.

rlhe battles 18 serves as a. means to prevent condensation under thesink 11 and also aids materially in the circulation ot air in the room.

The particular provision of the dead air space 15 has also been found togreatly increase the efficiency ot' the circulation of the air. sincethe air readily passes over the eX- tension 18 and down through thecoils 10, there being no opportunity tor the formation of eddy currentadjacent the casing 15 as has been the case where an angular trough wassubstituted for the casing 15 and which did not provide a dead airspace.

l claim:

1. A gravity air circulation system 'for a cooling room comprising acooling means disposed adjacent the ceiling and a side wall of saidcooling room, an inclined sink disposed beneath said cooling means, aninsulating baffle disposed beneath said sink and inclined downwardlytoward said side wall, and a dead air casing resembling a triangle incross section disposed in front of said cooling means and at arelatively Short distance trom the ceiling, the upper corner ot saidtriangular casing being closer to said side wall than the lower corner.

2. A gravity air circulation system comprising a bank of pipe coils torcontaining a cooling medium, said bank ot coils being supported adjacentthe ceiling ot a cooling room? an inclined sink disposed beneath saidpipe coils and arranged to incline downwardly toward the tront aninsulating baitile disposed beneath said sink. and a dead air casingdisposed adjacent the ceiling ot said room in iront ot said pipe coils,said casing resembling a triangle in cross section.

A gravity air circulation system comprising a bank of pipe coils torcontaining a cooling medium, said bank ot coils being supported adjacentthe ceiling ot a cooling room, an inclined sink disposed beneath saidpipe coils.y an insulating baille disposed beneath said sink. and a deadair casing disposed adjacent the ceiling of said room in trent ot saidpipe coils in a manner so that one ot its corners overhangs its adjacentcorner.. said casing formed to resemble an isosceles triangle in crosssection and arranged so that its shortest side faces said pipe coils.

e. il., gravity air circulation system comprisi a bank of pipe coils forcontaining a cooling medium` said bank ot coils being supported adjacentthe ceiling ot a cooling roonn an inclined sink disposed beneath saidpipe coils, said sink being termed with a gutter at its lowermost pointrunning the full length thereof, an insulating baille disposed beneathsink. and a dead air casing disposed adjacent the ceiling ot said roomin liront of said pipecoils.y said casing resembling an isoscelestriangle in cross section.

ln a gravity air circulator having a plurality ot pipe coils forcontaining a cooling medium disposed adjacent the ceiling ot a coolingroom.y of a casing for providing a dead air space disposed in front ofsaid coilsa a sink disposed beneath said pipe coils and arranged toincline downwardly toward the front tier ot said pipe coils, and aninsulating baille disposed beneath said sink and inclined upwardlytoward the front tier of said pipe coils1 the space between said sinkand said battle being filled with an insulating material. f

JOHN BERTRAM LACY.

